华南理工大学学报(自然科学版) ›› 2015, Vol. 43 ›› Issue (2): 139-143,150.doi: 10.3969/j.issn.1000-565X.2015.02.021

• 材料科学与技术 • 上一篇    下一篇

有机蒙脱土/环氧树脂改性沥青材料的性能

肖新颜 张登科 晏英 朱文强   

  1. 华南理工大学 化学与化工学院,广东 广州 510640
  • 收稿日期:2014-06-30 修回日期:2014-09-21 出版日期:2015-02-25 发布日期:2014-12-31
  • 通信作者: 肖新颜(1964-),男,教授,博士生导师,主要从事有机无机纳米复合材料研究. E-mail:cexyxiao@scut.edu.cn
  • 作者简介:肖新颜(1964-),男,教授,博士生导师,主要从事有机无机纳米复合材料研究.
  • 基金资助:

    国家自然科学基金(石油化工联合基金)资助项目(U1162120)

Properties of Asphalt Modified with Organic Montmorillonite/Epoxy Resin

Xiao Xin-yan Zhang Deng-ke Yan Ying Zhu Wen-qiang   

  1. School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2014-06-30 Revised:2014-09-21 Online:2015-02-25 Published:2014-12-31
  • Contact: 肖新颜(1964-),男,教授,博士生导师,主要从事有机无机纳米复合材料研究. E-mail:cexyxiao@scut.edu.cn
  • About author:肖新颜(1964-),男,教授,博士生导师,主要从事有机无机纳米复合材料研究.
  • Supported by:
    Supported by the Joint Funds of the National Natural Science Foundation of China(U1162120)

摘要: 以有机蒙脱土(OMMT)改性环氧树脂作为改性剂,采用熔融共混法制备了 OM-MT/环氧树脂改性沥青材料. 采用 FT-IR、XRD、荧光显微镜、万能材料试验机、热重分析和布氏黏度计等对相容剂与沥青的相容性及复合改性沥青的微观结构、拉伸强度、断裂伸长率、热稳定性、黏度特性进行了研究. 结果表明:OMMT 的掺入使环氧树脂在沥青中分散更均匀,OMMT/环氧树脂复合改性沥青形成剥离型结构;OMMT 的掺入使复合改性沥青高温性能及力学性能增强;与环氧树脂改性沥青相比,OMMT/环氧树脂改性沥青的起始分解温度和终止温度分别提高了 30. 1℃和 15℃,高温稳定性明显提高;复合改性沥青固化
反应黏度增长平缓,更适合道路施工.

关键词: 有机蒙脱土, 环氧树脂, 改性沥青, 力学性能, 热稳定性

Abstract: Organic montmorillonite (OMMT) /epoxy resin was used to modify asphalt via melt blending,and the compatibility of the compatibilizer and asphalt,as well as the microstructure,tensile strength,break elongation,thermal stability and viscosity-temperature properties of the modified asphalt,was characterized by means of FT-IR,XRD,fluorescent microscopy,universal material testing,TG analysis and Brookfield viscometry. The results show that (1) the dispersion of epoxy resin in the modified asphalt becomes more uniform due to the incorporation of OMMT,which results in an exfoliated structure; (2) the high-temperature performance and mechanical properties of the modified asphalt improve after the doping of OMMT; (3) as compared with the asphalt modified with epoxy resin,the asphalt modified with OMMT/epoxy resin exhibits better thermal stability,with increase of 30. 1℃ and 15℃ in initial and final decomposition temperature respctively; and (4) the asphalt modified with OMMT/epoxy resin is suitable for road construction due to its gently improved viscosity during the curing process.

Key words: organic montmorillonite, epoxy resin, modified asphalt, mechanical properties, thermal stability

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